Zhong Nanshan s team said that nearly half of the patients did not have fever at the time of consult

A cold and cough, and then an inflamed throat may be an infection.

The research team noted that the incubation period depends mainly on the time when the patient reported the last contact with the source of infection, the person in the endemic area, the wildlife and the time when the first symptoms included fatigue, cough and fever。The incubation period for the whole population to appear varied, and the researchers used median, minimum, and maximum values to show the concentrated and dispersed distribution of the incubation period. The study found that the incubation period for each new patient in the severe and non-severe groups was 24 days.

However, a closer examination of the distribution pattern of the incubation period in the entire population reveals that a total of 13 cases (incubation period greater than 14 days, only 8 cases (incubation period greater than 14 days, 18 days to estimate the incubation period of the population based only on minimum and maximum values can easily lead to misunderstandings.

The researchers calculated some of the data that were not plausible and calculated the latest delay time. Four daysTherefore, in order to more appropriately reflect the individual tendencies of the parent group, the researchers determined the incubation period for the quartile range to be 5 days (2-7 days). What is the difference between a new virus and the flu?

The research team believes that although SARS-CoV-2 and SARS-CoV are highly similar in species, Covido-19 can be distinguished from SARS-CoV, and MERS-CoV can also be distinguished from seasonal influenza. For example, seasonal influenza is more common in respiratory clinics and patient rooms.

Regarding future research directions, the research team said that there is an urgent need to understand the dynamic characteristics of virus transmission, the transmission route, and the dependence of the virus on human tissues. Previous studies have been used to change trends in new viral epidemiological trends in China, but have not yet been properly incorporated into recent robust interventions across the country, national recovery efforts, and closures such as Wuhan and Huanggangshang where demographic epidemiological trends have changed. Therefore, building and validating intelligent models of the spread of the virus in the population is also a current priority.

Then it depends on the people they have contacted, generally they have been in contact with it, and those who have been active in crowded places will be infected, and these people must be isolated.

I think blood testing should be the most effective and easiest way, fever can be physical, take medicine to cool down. Blood certainly can't be faked.

If you want to effectively screen whether you are infected, you should see if there is anything abnormal in your body, such as diarrhea or fever and runny nose, and if there are any subtle symptoms, you should also go to the hospital for examination, just in case.

On the afternoon of the 18th, at a public welfare health forum in Guangzhou, Academician Zhong Nanshan, director of the National Clinical Research Center for Respiratory Diseases, explained the characteristics of this year's influenza and pointed out that the current circulating influenza B virus has some mutations, and the B Yamagata virus has increased significantly in the infected population.

At present, the domestic use of trivalent influenza vaccine does not cover this subtype, and does not provide an ideal prevention effect on the current wave of influenza B, and he called for the production of quadrivalent vaccine to be included in it as soon as possible.

He also reminded,A new wave of influenza is likely to occur in March this year, influenza vaccination should be strengthened, and it is hoped that the relevant departments will increase funding for immunization and prevention of the target population.

Status: Influenza cases have doubled

Winter is the season for the flu. Everyone is familiar with the flu, and it is also a type of cold in a broad sense. Zhong Nanshan said that in the past three weeks, there has been a significant increase in influenza cases in China and many countries and regions.

According to the Chinese Center for Disease Control and Prevention, the number of influenza cases reported in outpatient clinics and emergency departments across the country in recent weeks is higher than the same period in the past three years.

According to him, according to the nuclear protein of the virus, influenza can be divided into four main antigen types: A, B, C, and D, or A, B, C, and D; Type A and B are more common, while type C and D are rare. There are two main subtypes of type B: Victoria and Yamagata.

Type B accounted for a large proportion of the increase in influenza cases from the end of last year to the beginning of this year, with a significant increase in the Yamagata type.

Interpretation: The influenza B virus has mutated

Seasonal flu occurs almost every year, and sometimes more than once a year. Although, like most common colds, it is caused by a viral infection, the virus often mutates and can sometimes catch people off guard.